Methods of sealing plugs in well bores

Details Methods of sealing plugs in well bores Methods of sealing plugs in well bores

E - Fixed Constructions

21

B

E21B 33/134 (2006.01) C09K 8/50 (2006.01) C09K 8/508 (2006.01)

Patent

CA 2245201

The present invention provides improved methods of sealing a bridge plug or the like in a pipe disposed in a well bore. The methods basically comprise the steps of preparing a hardenable epoxy sealing composition, which hardens into a resilient solid mass having high bond strength comprising an epoxide containing liquid, an organosilane compound and a hardening agent, placing the epoxy composition in the annulus between the pipe and the walls of th well bore and allowing the epoxy composition to harden.

La présente invention porte sur des méthodes améliorées pour sceller un bouchon de support ou autre dispositif du genre dans un tube placé dans un puits de forage. Les méthodes comprennent essentiellement les étapes suivantes: préparer un composé époxidique de scellement durcissable, qui durcit en une masse solide élastique à haute résistance d'adhésion, constitué d'un liquide contenant un époxyde, un composé d'organosilane et un agent durcisseur, placer le composé époxydique dans l'espace annulaire entre le tube et les parois du puits de forage et laisser durcir le composé époxydique.

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